The term "11 sep holiday in pakistan" functions grammatically as a noun phrase, where "holiday" is the head noun modified by the date and location. However, the premise of the phrase is factually incorrect. September 11 is not a public holiday in Pakistan. Instead, it is solemnly observed as the death anniversary of the nation's founder, Muhammad Ali Jinnah, who passed away on this day in 1948.
This date is marked by commemoration rather than celebration or a general cessation of work. Official activities include wreath-laying ceremonies at Jinnah's mausoleum, Mazar-e-Quaid, in Karachi, attended by high-ranking political and military officials. State-run media channels broadcast special programs, documentaries, and discussions reflecting on his life, vision, and leadership. Unlike a designated public holiday, government offices, educational institutions, and commercial businesses operate on a normal schedule.
Therefore, the key distinction is between a day of national remembrance and an official public holiday. While September 11 holds significant historical and national importance in Pakistan, it is designated as a day for sober reflection and tribute to the Quaid-e-Azam (Great Leader), not as a holiday from civic and economic duties.